Do you dream of score the winning goal in a football match, or beat a top tennis player? Sport interest most young people, and it's a great way to stay healthy and have fun at the same time. That's why the local council has decided to help young people who want to organise their own sports club. We know it's a big challenge, and that's why we'll give you the money you need to get started. We'll help you find a place to train and give you money to find good players in your area. Contact the Town Hall for details.

12,5 tấn =125 tạ                     3,9kg =390g            0,5 tấn = 500kg         0,34 tấn = 340 kg

a) 550m

B) 39,6

tick cho minh đi mà

Lượng dầu ban đầu trong 1000 kg hóa chất:

100 : 100 x 1 = 10(kg)

Lượng dầu lúc sau chiếm:

100% - 96% = 4% (lượng hóa chất)

Bây giờ loại hóa chất đó nặng:

10 : 4% = 250(kg)

Đ/s: 250 kg.

Có: |3(x-1)-4|=5

=> 3(x-1)-4 = 5 và - 5

Xét:

3(x-1) - 4 = 5

=> 3(x-1) = 5 + 4

=> 3(x-1) = 9

=> x - 1 = 9:3

=> x - 1 = 3

=> x = 3 + 1

=> x = 4

Xét:

3(x-1) - 4 = -5

=> 3(x-1) = (-5) + 4

=> 3(x-1) = - 1

=> x - 1 = (- 1) : 3

=> x - 1 = \(\dfrac{-1}{3}\)

=> x = \(\dfrac{-1}{3}+1\)

=> x = \(\dfrac{2}{3}\)

Vậy: x là 4 và \(\dfrac{2}{3}\).

a) Ta trồng như sau:

b) Ta trồng như sau:

c) Ta trồng như sau:

d) Ta trồng như sau:

e) Ta trồng như sau:

nghi dính WannaCry ae ko nên vào